55 research outputs found
Clustering for hydroclimatic extremes: a retrospective synthesis of the literature
No full textThe presentation of the abstract IAHS2022-262:
Dogulu, N., M. I. Brunner, S. Fischer, and W. Knoben. (2022) Clustering for hydroclimatic extremes: a retrospective synthesis of the literature. Abstract IAHS2022-262, IAHS 2022 Scientific Assembly, Montpellier, France, 29 May – 3 June 2022. https://doi.org/10.5194/iahs2022-262
which is partially based on the results from the following manuscript (by the same authors) in preparation:
Clustering in hydrology: a systematic review and research outloo
Is replacing meteorological masts possible?
No full textThe capability to acquire accurate and reliable measurements of the wind is essential for wind turbine validation and wind resource assessment. These measurements are typically done with tall meteorological masts (met-masts). However, as of 2004 the concept of remote sensing has started to become specialised in wind energy. A key requirement before full implementation can be accepted, is a fully traceable uncertainty chain. The aim of this thesis is closing the uncertainty chain by providing an innovative best practise guideline in order to establish a quantifiable and repeatable classification uncertainty. After the closure the viability of remote sensing to replace met-masts has been assessed. The classification uncertainty comprises several steps, of which the assessment of interdependency of atmospheric variables was left open by the regulations. This thesis provides a tested automated procedure, hence contributes to both the wind industry and body of science. Based on the results of this thesis it was observed that the usage of thresholds, imposed by the regulations, led to erratic behaviour in the uncertainties. The acquired inconsistencies are significant to the extent that the author recommends not to use the classification uncertainties, and therefore the total uncertainties. As a direct result the author does not recommend a full replacement of met-masts. To improve the current uncertainty model, it is recommended to implement weighing functions to create a smoother output. Furthermore, additional requirements to the acceptance of binned data are recommended in order to avoid skewing of the regression due to biased data-sets, hereby increasing the robustness of the procedure. After these recommendations are implemented it is advised to do a second iteration of establishing the thresholds.Aerospace EngineeringAerodynamic
“Open science? Activism!” Working together to share modelling resources
No full textCanada First Research Excellence FundNon-Peer ReviewedA young hydrological modeler becomes an advocate for open science
wknoben/hydrometric_uncertainty_comment: Revision 1 release
No full textChanges made during peer review round 1:
Changed label names to match original publication
Changed subplot titles to match changed text in manuscript
Added annotation for high flow event
Update plot config handling for making figure
“Open science? Activism!” Working together to share modelling resources
No full textCanada First Research Excellence FundNon-Peer ReviewedA young hydrological modeler becomes an advocate for open science
Survey data on the perceptions and impacts of gender inequality in the geosciences
No full text<p>The data stem from an anonymous, online survey conducted from March 25 to April 11, 2018 using Google Surveys. The link to the survey was distributed by the authors via emails and social media (Twitter and Facebook). Among the 1415 participants, we analyzed the responses of those who identified as either female or male (leaving out seven non-binary respondents due to the small sample size), and currently work in academia (i.e., universities or research institutes, including emeritus and adjunct professors, research support staff, and research assistants). We thereby retained 1220 respondents with a gender distribution of 67.0% female to 33.0% male survey participants.</p>
<p>Based on this survey, we published to following freely accessible article: Popp, A. L.; Lutz, S. R.; Khatami, S.; van Emmerik, T. H. M.; Knoben, W. J. M. (2019) A global survey on the perceptions and impacts of gender inequality in the earth and space sciences, <em>Earth and Space Science</em>, 6(8), 1460-1468, <a href="http://doi.org/10.1029/2019EA000706">doi:10.1029/2019EA000706</a>.</p>
wknoben/MARRMoT: MARRMoT_v1.3
No full textThis release contains the MARRMoT files as described in the paper "Modular Assessment of Rainfall-Runoff Models Toolbox (MARRMoT) v1.2: an open-source, extendable framework providing implementations of 46 conceptual hydrologic models as continuous space-state formulations", its Supporting Materials, and the MARRMoT User Manual v1.3.
Compared to MARRMoT v1.2, the code in v1.3 has been modified to fix a bug in the flux file 'interflow_9'. See changelog
easymore
No full textEASYMORE; EArth SYstem MOdeling REmapperIf you use this software, please cite it as below
A Validation Study of the Coupled Aero-Thermal Flow through a Target-Type Thrust Reverser: To Determine the Wall Temperature Distribution on a Thrust Reverser Door
No full textThis abstract describes the research performed to predict the wall temperature distribution on the door of a target-type thrust reverser by means of coupled aero-thermal simulations. The research is performed to obtain the degree of Master of Science in Aerospace Engineering from the Technical University of Delft. The project is carried out at Rolls-Royce Deutschland Ltd & Co KG. The main function of a thrust reverser is to decrease the ground-roll distance during landing or an aborted take-off. The thrust reversers are not allowed to be used during certification but add an extra element of safety during these critical flight phases.Aerospace Engineerin
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